AT&T DECT TL91178 User manual

User’s manual
TL91178/TL91278/TL91378TL91278/TL91378TL91378
DECT 6.0 cordless
telephone with BLUETOOTH®
wireless technology

Model #: TL91178 (one handset)
TL91278 (two handsets)
TL91378 (three handsets)
Type: DECT 6.0 cordless telephone with Bluetooth wireless
technology
Serial #:
Purchase date:
Place of purchase:
Both the model and serial number of your AT&T product can be found on the
bottom of the telephone base.
Save your sales receipt and original packaging in case it is necessary to return
your telephone for warranty service.
Congratulations
on your purchase of this AT&T product. Before using this AT&T product,
please read the Important safety information on pages 73-75 of
this manual.
Please thoroughly read this user’s manual for all the feature operations
and troubleshooting information necessary to install and operate your new
AT&T product. You can also visit our website at
www.telephones.att.com or call 1 (800) 222-3111. In Canada, dial
1 (866) 288-4268.
The ENERGY STAR Rprogram (www.energystar.gov) recognizes
and encourages the use of products that save energy and help
protect our environment. We are proud to mark this product
with the ENERGY STAR Rlabel indicating it meets the latest
energy efficiency guidelines.
The Bluetooth® word mark and logos are owned by Bluetooth SIG, Inc. and any use of such marks by Advanced
American Telephones and its parent, VTech Holdings Limited, is under license. VTech Holdings Limited is a member of
Bluetooth SIG, Inc. Other trademarks and trade names are those of their respective owners.
© 2008-2009 Advanced American Telephones. All rights reserved.2008-2009 Advanced American Telephones. All rights reserved.
AT&T and the AT&T logo are trademarks of AT&T Intellectual Property licensed to Advanced American Telephones,
San Antonio, TX 78219. Printed in China.
Telephones identified with this logo have reduced noise and
interference when used with most T-coil equipped hearing aids and
cochlear implants. The TIA-1083 Compliant Logo is a trademark of
the Telecommunications Industry Association. Used under license.
T
Compatible with
Hearing Aid T-Coil
TIA-1083

Telephone base
Battery for cordless handset
(1 for TL91178)
(2 for TL91278)
(3 for TL91378)
Cordless handset
(1 for TL91178)
(2 for TL91278)
(3 for TL91378)
Charger for cordless handset
with power adapter installed
(1 for TL91278)
(2 for TL91378)
Battery compartment cover
(1 for TL91178)
(2 for TL91278)
(3 for TL91378)
User's manual Quick start guide
User’s manual
TL91178/TL91278/TL91378
DECT 6.0 cordless
telephone with BLUETOOTH®
wireless technology
Quick start guide
TL91178/TL91278/TL91378
DECT 6.0 cordless
telephone with BLUETOOTH®
wireless technology
Wall mount bracket Telephone line cord Power adapter for
telephone base
Parts checklist
Your telephone package contains the following items.

User’s manual
TL91178/TL91278/TL91378
DECT 6.0 cordless
telephone with Bluetooth®
wireless technology
Getting started
Quick reference guide
handsethandset ............................................ 1
telephone base ............................ 3
Handset status icons....................... 4
Installation............................................ 5
Telephone base installation......... 7
Charger installation.......................... 8
Battery installation &
charging........................................... 9
Installation options...............................11
Bluetooth
Introducing Bluetooth...................16
Glossary of terms............................17
Bluetooth setup ...............................18
Handset settings
Handset main menu.......................21
Handset settings..............................22
Telephone operation
Handset operation..........................27
Options while on calls..................33
Chain dialing......................................36
Intercom...............................................37
Call transfer using intercom ......39
Directory
About the directory........................41
Creating directory entries...........42
Directory review...............................44
Directory search...............................45
To dial, delete or
edit entries...................................46
Caller ID
Caller ID operation..........................48
To review the caller ID
history ..............................................53
Appendix A,
Alert tones & lights ........................55
Appendix B,
Handset display screen
messages ......................................56
Appendix C,
Expansion handset ...............................59
Adding & registering handsets .....60
Replacing a handset............................61
Table of contents

Appendix D,
Troubleshooting ...............................62
Appendix E,
Maintenance.......................................72
Appendix F,
Important safety information ....73
Appendix G,
FCC Part 68 and ACTA..................76
Appendix H,
FCC Part 15........................................78
Appendix I,
Limited warranty..............................79
Appendix J,
Technical specifications ...............82
Index...................................................84
Table of contents

Getting started
1
MENU/SELECT
Press to show the menu.
While in the menu, press to
select an item or save an entry
or setting.
Quick reference guide - handset
DELETE/MUTE
During a call, press to mute
microphone (page 34).
While reviewing the caller ID
history, the directory or the
redial memory, press to delete
an individual entry
(page 54, page 46 and page 31
respectively).
While predialing, press to delete
digits (page 27).
REDIAL/PAUSE
Press repeatedly to view the
last five numbers dialed
(page 31).
While entering numbers, press
and hold to insert a dialing
pause (pages 42 and 46).
SPEAKER
Press to turn on the
handset speakerphone.
Press again to resume
normal handset use
(page 31).
HOME/FLASH
Press to make or answer a
HOME call.
Flashes rapidly when there israpidly when there is
an incoming HOME call.
Flashes slowly when a HOME
call is on hold.
During a HOME call, press to
receive an incoming call if call
waiting is activated (page 27).
CELLULAR
Press to make or answer a
CELLULAR call.
Flashes rapidly when there is an
incoming CELLULAR call.
Flashes slowly when a
CELLULAR call is on hold.
During a CELLULAR call, press
to receive an incoming call if
call waiting is activated
(page 30).
OFF/CLEAR
During a HOME or CELLULAR
line call, press to end the call.
While in a menu, press to
cancel an operation, back up to
the previous menu, or exit the
menu display.
CHARGE indicator
On when the handset is
charging in the telephone base
or charger.
DIR / CID
Press DIR to show directory
entries (page 44).
Press to scroll up while in
menus.
While entering names or
numbers, press to move the
cursor to the right.
Press to increase the listening
volume when on a call.
Press CID to show caller ID
history (page 53).
Press to scroll down while in
menus.
While entering names or
numbers, press to move the
cursor to the left.
Press to decrease the listening
volume when on a call.
HOLD
Press to put the HOME or
CELLULAR call on hold
(page 35).

Getting started
2
Feature menu
Feature menu
DIRECTORY (page 41)
CALL LOG (page 48)
INTERCOM (page 37) - This feature is not available on model TL91178.
RINGER VOLUME (page 22)
RINGER TONE (page 23)
KEY TONE (page 24)
LANGUAGE (page 24)
CLR VOICEMAIL (page 25)
HOME AREA CODE (page 26)
Using menus
Press MENU/SELECT to show the main menu.
Press or to scroll through menu items.
Press MENU/SELECT to select or save changes to a highlighted menu
item.
Press OFF/CLEAR to cancel an operation, back up to the previous
menu, or exit the menu display.
The >symbol highlights a
menu item.
Quick reference guide - handset
>DIRECTORY
CALL LOG

Getting started
3
IN USE indicator
On when the handset
is in use, or when
you are registering a
handset.
Flashes when another
telephone is in use on
the same line, or when
you are deregistering
handsets from the
telephone base.
Flashes quickly when
there is an incoming
call.
•
•
•
Quick reference guide - telephone base
VOICEMAIL indicator
Flashes when you have
new voicemail on your
HOME line (offered by
your telephone company,
and is different from
answering system
messages). The indicator
does not support
voicemail on your
CELLULAR line.
HANDSET LOCATOR
Press to make handsets
beep so you can locate
them (page 32).
Bluetooth
Press and hold to
enable the Bluetooth
feature on the
telephone base
(page 18).
On when the
telephone base is
paired and connected
with a cellular phone.
Flashes when the
Bluetooth feature is
activated and waiting
for pairing and
connection.
•
•
•

Getting started
4
Handset status icons
HANDSET 1
10:21 AM 11/23
25 MISSED CALLS
NEW
MUTE
HOME line - on steady when the HOME line is in use.
CELLULAR line - on steady when the CELLULAR line is in use.
BLUETOOTH - on steady when a cellular phone is connected with
the telephone base.
NEW VOICEMAIL - new voicemail received on your HOME line.
SPEAKERPHONE - the speakerphone is in use.
Ringer off - the handset ringer is turned off.
Battery status - battery is charging (animated display).
Battery status - low battery (flashing); place handset in telephone
base or charger to recharge.
MUTE Microphone is muted.
NEW Missed and unreviewed calls.
The Bluetooth® word mark and logos are owned by Bluetooth SIG, Inc. and any use of such marks
by Advanced American Telephones and its parent, VTech Holdings Limited, is under license. VTech
Holdings Limited is a member of Bluetooth SIG, Inc. Other trademarks and trade names are those of
their respective owners.

Getting started
5
Getting started
Installation
Install the telephone base close to a telephone jack and a power outlet not
controlled by a wall switch. The telephone base can be placed on a flat surface
or vertically mounted on the wall (see pages 11-13). For optimum range and
better reception, place the telephone base in a central and open location.
You may hear interference if your cellular phone is too close to the telephone
base during a CELLULAR call. Make sure that your Bluetooth enabled cellular
phone is between one to 12 feet away from the telephone base in order
to maintain a clear and consistent connection between your Bluetooth cell
phone, telephone base and cell tower.
If you subscribe to high-speed Internet service (digital subscriber line - DSL)
through your telephone line, you must install a DSL filter between the telephone
base and the telephone wall jack (see the following page). The filter prevents
noise and caller ID problems caused by DSL interference. Please contact your
DSL service provider for more information about DSL filters.
Your product may be shipped with a protective sticker covering the handset or
telephone base display - remove it before use.
For customer service or product information, visit our website at
www.telephones.att.com or call 1 (800) 222-3111. In Canada, dial
1 (866) 288-4268.
STOP! See pages 9-10 for easy
instructions.
You must install and charge
the handset battery before
using the cordless handset.

6
Getting started
Installation
Avoid placing the telephone base too close to:
• Communication devices such as: television sets, VCRs, or other cordless
telephones.
• Excessive heat sources.
• Noise sources such as a window with traffic outside, motors, microwave
ovens, refrigerators, or fluorescent lighting.
• Excessive dust sources such as a workshop or garage.
• Excessive moisture.
• Extremely low temperature.
• Mechanical vibration or shock such as on top of the washing machine or
workbench.

Getting started
7
Telephone base installation
Install the telephone base as shown below. Make sure that the electrical outlet
is not controlled by a wall switch.
The telephone base is set for desktop use. If you want to change to the wallIf you want to change to the wall
mounting position, install the supplied wall mount bracket to the telephone base.
See pages 11-13 for details.
7. Raise the antenna.
3. Plug one end of
the telephone
line cord into the
telephone jack at
the bottom of the
telephone base.
2. Route the power cord through the
slot next to the telephone jack.
Power
adapter
DSL filter (not included),
required if you have DSL
high-speed Internet service.
Telephone
line cord
1. Plug the small
end of the power
adapter into the
power jack at
the bottom of
the telephone
base.
5. Plug the other
end of the
telephone line
cord into a
telephone jack
or a DSL filter.
6. Plug the large end of the
power adapter into a power
outlet not controlled by a
wall switch.
4. Place the cords
into the channels.

Getting started
8
IMPORTANT INFORMATION
Use only the power adapter supplied with this product. To order a replacement
power adapter, visit our website at www.telephones.att.com, or call
1 (800) 222-3111. In Canada, dial 1 (866) 288-4268.
The power adapters are intended to be correctly oriented in a vertical or floor
mount position. The prongs are not designed to hold the plug in place if it is
plugged into a ceiling, under-the-table or cabinet outlet.
1.
2.
Plug the power adapter
into an electrical outlet not
controlled by a wall switch.
Charger installation

Getting started
9
Battery installation & charging
Install the battery as shown on the next page. Once you have installed the
battery, the screen indicates the battery status (see table below). If necessary,
place the handset in the telephone base or charger to charge the battery.
For best performance, keep the handset in the charger when not in use. The
battery is fully charged after 16 hours of continuous charging. See the table
on page 82 for battery operating times.
If the screen is blank, you need to charge the handset without interruption for
at least 10 minutes to give the handset enough charge to use the telephone
for a short time. The screen shows LOW BATTERY and the backlight is off
until you have charged the battery without interruption for at least one hour.
The following table summarizes the battery charge indicators and actions
to take.
Battery indicators Battery status Action
The screen is blank. Battery has no charge
and the handset
cannot be used.
Charge without
interruption until the
screen shows LOW
BATTERY (at least 10
minutes).
The screen shows
PLACE IN CHARGER
and flashes.
Battery has very little
charge and the handset
cannot be used.
Charge without
interruption until the
screen shows LOW
BATTERY (at least four
minutes).
The screen shows
LOW BATTERY and
flashes.
Battery has enough
charge to be used for a
short time.
Charge without
interruption until the
screen shows HANDSET
X (at least one hour).
The screen shows
HANDSET X.
Battery is charged. To keep the battery
charged, place it in
the telephone base or
charger when not in use.
NOTE: If you are on a phone call in low battery mode, you hear four short beeps
every minute.

Getting started
10
Battery installation & charging
Step 1
Plug the battery securely
into the connector inside
the handset battery
compartment, matching
the color-coded label.
Insert the supplied battery
with the label THIS SIDE
UP facing up as indicated.
Step 2Step 3
Press the depression
and slide the battery
compartment cover
downwards (if
necessary).
Align the cover flat
against the battery
compartment
cover, then slide
it upwards until it
clicks into place.
Charge the handset by placing it face up in the
telephone base or charger. The CHARGE light will
be on when charging.
Step 4
IMPORTANT INFORMATION
Use only the supplied rechargeable battery or replacement battery (model BT8001). To
order, visit our website at www.telephones.att.com or call 1 (800) 222-
3111. In Canada, dial 1 (866) 288-4268.

Getting started
11
Installation options
The telephone base is set for desktop use. It is possible to change to a
wall mounting position by installing the wall mount bracket provided. Wall
mounting requires a telephone outlet wall mounting plate with mounting
studs that may require professional installation. You can purchase the
mounting plate from many hardware or consumer electronics retailers.
Desktop to wall mount installation
To change the telephone base to the wall mount position, make sure that
you first unplug the telephone line cord and power adapter cord from the
wall outlets before you begin. In addition, to prevent possible damage,
remove the handset from the telephone base.
2. Push the telephone base down until it clicks into place on both sides of the
bracket.
1. Position the telephone base as shown below, and insert the extended tabs of
the bracket into the slots under the telephone base.

Getting started
12
Installation options
Desktop to wall mount installation
4. Align the holes on the bracket with the standard wall plate and slide the
bracket until the telephone is secured as shown below. Plug the telephone
line cord into a telephone wall jack. Plug the power adapter into a power
outlet not controlled by a wall switch.
3. Bundle the telephone line cord and power adapter cord, and secure them withBundle the telephone line cord and power adapter cord, and secure them with
a twist tie before placing them behind the telephone base as shown below.
DSL filter (not included),
required if you have DSL
high-speed Internet service.

Getting started
13
5. Make sure the telephone is securely positioned as shown below.
Installation options
Desktop to wall mount installation

Getting started
14
Installation options
Wall mount to desktop installation
To change the telephone base to the desktop position, make sure that you first
unplug the telephone line cord and power adapter cord from the wall outlets
before you begin. In addition, to prevent possible damage, remove the handset
from the telephone base.
1. Remove the telephone base from the wall and untie the bundled telephoneuntie the bundled telephone
line cord and power adapter cord.
2. Press on the catches on both sides of the bracket (indicated by arrows below)
to unlock the telephone base from the bracket.
3. Pull the telephone base up to detach it from the bracket.
The catch on each side of
the telephone base.

Getting started
15
Installation options
4. Plug the telephone line cord into a telephone wall jack, and plug the power
adapter cord into a power outlet not controlled by a wall switch. Route the
cords through the channels.
Power
adapter DSL filter (not included),
required if you have DSL
high-speed Internet service.
Telephone
line cord
Power outlet not
controlled by a wall
switch.
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